Early Cerebras investor Adit Singh joins Mayfield as infrastructure partner

Adit Singh, a notable early backer of AI chip company Cerebras, is joining venture capital firm Mayfield as an infrastructure partner. In his new role, he will concentrate on identifying and funding opportunities across semiconductors, cybersecurity, and physical AI — areas increasingly central to the next wave of tech growth.

Adit Singh, who made a name for himself by investing early in Cerebras — the AI chip startup that has gained significant attention amid the generative AI boom — is moving to established venture capital firm Mayfield in a newly created infrastructure partner role.

At Mayfield, Singh's mandate will center on three high-priority domains: semiconductor technology, cybersecurity, and physical AI, a category that encompasses robotics and AI systems that interact with the physical world. These sectors have seen surging investor interest as enterprises race to build out the hardware and security layers underpinning modern AI systems.

The move signals Mayfield's intent to deepen its technical expertise in foundational infrastructure at a time when compute, chips, and security are no longer background concerns but central battlegrounds in the broader technology industry.

Adit Singh, recognized for his prescient early investment in Cerebras Systems — an AI chip firm whose wafer-scale processor architecture put it ahead of conventional GPU-based approaches — is transitioning to a partner-level role at Mayfield, one of Silicon Valley's longer-standing venture capital firms.

His title, infrastructure partner, suggests a deliberate expansion of Mayfield's investment thesis beyond software and consumer-facing platforms. Singh will direct his attention toward semiconductors, cybersecurity, and physical AI — three categories that sit at the hardware and systems layer of the technology stack, rather than the application layer that has dominated VC headlines in recent years.

Physical AI, in particular, is an emerging term describing AI that operates within and responds to the real world, encompassing robotics, autonomous systems, and AI-driven manufacturing. As model capabilities mature, the bottleneck is increasingly shifting to physical deployment — making this a strategically smart area to plant a flag early.

Why it matters: Singh's appointment reflects a broader recalibration happening across the VC landscape. After years of chasing software-defined opportunities, investors are recognizing that the next phase of technological competition will be won or lost at the infrastructure level — chips, secure systems, and physical automation. Firms that build deep expertise in these domains now are positioning themselves to lead the next investment cycle, and recruiting operators and investors with hands-on hardware and systems experience is a key part of that strategy.

For Mayfield specifically, this hire could meaningfully sharpen its competitive edge against larger, more generalist funds that are also moving into deep-tech infrastructure. Singh's track record with Cerebras gives him credibility in a space where technical judgment matters enormously, and his network within the semiconductor and AI hardware ecosystem could open deal flow that traditional software-focused VCs would likely miss.